I use this command successfully 3 days ago, but now i don't know what wrong with it

#locale-gen
Generating locales (this might take a while)...
zh_CN.UTF-8...zh_CN:1: syntax error: not inside a locale definition section
zh_CN:2: syntax error: not inside a locale definition section
zh_CN:3: syntax error: not inside a locale definition section
zh_CN:4: syntax error: not inside a locale definition section
zh_CN:5: syntax error: not inside a locale definition section
No definition for LC_CTYPE category found
No definition for LC_NUMERIC category found
No definition for LC_TIME category found
No definition for LC_COLLATE category found
No definition for LC_MONETARY category found
No definition for LC_MESSAGES category found
No definition for LC_PAPER category found
No definition for LC_NAME category found
No definition for LC_ADDRESS category found
No definition for LC_TELEPHONE category found
No definition for LC_MEASUREMENT category found
No definition for LC_IDENTIFICATION category found
done
zh_CN.GB18030...zh_CN:1: ????:?????????
zh_CN:2: ????:?????????
zh_CN:3: ????:?????????
zh_CN:4: ????:?????????
zh_CN:5: ????:?????????
No definition for LC_CTYPE category found
No definition for LC_NUMERIC category found
No definition for LC_TIME category found
No definition for LC_COLLATE category found
No definition for LC_MONETARY category found
No definition for LC_MESSAGES category found
No definition for LC_PAPER category found
No definition for LC_NAME category found
No definition for LC_ADDRESS category found
No definition for LC_TELEPHONE category found
No definition for LC_MEASUREMENT category found
No definition for LC_IDENTIFICATION category found
done
zh_CN.GBK...zh_CN:1: ????:?????????
zh_CN:2: ????:?????????
zh_CN:3: ????:?????????
zh_CN:4: ????:?????????
zh_CN:5: ????:?????????
No definition for LC_CTYPE category found
No definition for LC_NUMERIC category found
No definition for LC_TIME category found
No definition for LC_COLLATE category found
No definition for LC_MONETARY category found
No definition for LC_MESSAGES category found
No definition for LC_PAPER category found
No definition for LC_NAME category found
No definition for LC_ADDRESS category found
No definition for LC_TELEPHONE category found
No definition for LC_MEASUREMENT category found
No definition for LC_IDENTIFICATION category found
done
zh_CN.GB2312...zh_CN:1: ????:?????????
zh_CN:2: ????:?????????
zh_CN:3: ????:?????????
zh_CN:4: ????:?????????
zh_CN:5: ????:?????????
No definition for LC_CTYPE category found
No definition for LC_NUMERIC category found
No definition for LC_TIME category found
No definition for LC_COLLATE category found
No definition for LC_MONETARY category found
No definition for LC_MESSAGES category found
No definition for LC_PAPER category found
No definition for LC_NAME category found
No definition for LC_ADDRESS category found
No definition for LC_TELEPHONE category found
No definition for LC_MEASUREMENT category found
No definition for LC_IDENTIFICATION category found
done
Generation complete.

try

This should take care of your problems.